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(No Model.) 2 Sheets-Sheet 1. B. A. BALDWIN.

SPINNING MULE.

No. 331,272. Patented Dec. 1, I885.

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SPINNING MULE.

No. 331,272. Patented Dec. 1, 1885.

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PATENT EBEN A. BALDWIN, OF NORTH ANDOVER, MASSACHUSETTS, ASSIGNQR TO THE DAVIS & FURBER MACHINE COMPANY, OF SAME PLACE.

SPlNNING-MULE.

SPECIFICATION forming part of Letters Patent No. 331,272, dated December 1, 1885.

Application filed March 7, 1884. Serial No. 123,449. (No model.)

To all whom it may concern:

Be it known that I, EBEN A. BALDWIN, of North Andover, county of Essex, and State of Massachusetts, have invented an Improvement in Spinning-Mules, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention in mules has for its object to improve the construction of the drawing-out mechanism for the carriage, whereby the speed of the carriage may be reduced at the commencement of its outward movement, as will be described; and I have also provided means for changing the position of the drawing-out scroll with relation to the carriage to suit the requirements of the work being done.

Figure l is a plan view of a sufficient portion of a mule to illustrate my invention, the top portion of the carriage, spindle-driving drum, and spindles being omitted; Fig. 2, a section of Fig. 1, taken on the dotted line :0 m, the parts stated as having been omitted from Fig. 1 having been added; Fig. 3, a sectional detail of the two drums attached to the under side of the carriage, and Figs. 4 and 5 details to be referred to.

The head-stock A, the rolls A, the drawingout scroll 13, its shaft B, the carriage G, the track 0, on which it runs, the spindles O", and spindle-driving drum G are and may be all as usual.

At the under side of the carriage G, in suitable bearings, is a squaring-shaft, D, having at its ends squaring-pulleys D, supposed to be substantially as in United States Patent No. 272,401, heretofore issued to me. The squaring-shaft D serves as the axis of motion and support for the two drums E E, one of which is made adjustable with relation to the other, to thus take up any excessive slack in the drawing-out rope or band E or in the checkrope E. The drums E E are herein shown (see Fig. 3) as provided at their sides with clutch-teeth, the teeth of the drum E being kept normally pressed into engagement with the teeth of the drum E by a spiral or other suitable spring, E, the hubof the drum E being kept pressed against a collar, E fast on the shaft D, the right-hand end of the said spring (see Fig. 1) resting against the girt 0 The drum E is also provided with a wormgear, a. The squaring-shaft D receives upon it loosely and acts to support the toothed gear F, herein shown as having two arms, (marked 2 and 3;) but instead thereof it might be a regular gear; but in such event only a portion of it having substantially as many teeth as are represented in Fig. 2 would be employed. On the floor, nearly under the rolls, is placed a ,stand, G, provided with a rack, G, preferably made adjustable by the screws The carriage is provided with a longitudinallysliding but rotatable worm-shaft, I), having a suitable handle, b. This shaft has pinned upon it a worm, b, which engages the worm-gear a on the part E of the drum. The sliding shaft 6 passes loosely through an arm, 0, of a slide, 0, mounted upon a girt, a", connected with the carriage and parallel with the shaft 0, the arm 0 being placed between the end ofthe worm b and a collar, 0 fast on shaft b. The slide a has a stud, 0, upon which is placed loosely one end of a link, 0 the other end of which is placed loosely over a stud, 4, herein shown as having a T-shaped head, which is made adjustable in a T-shaped slot (see Fig. 4) of the arm (1, the hub of which is provided with a toothed gear, (1 the hub beyond the said gear being made as a stud, 5, (see Fig. 5,) which is extended through a bearing, (1, attached to the carriage, the part 5 being retained therein loosely by a collar, 6. The gear d does not actually require teeth for much over ninety degrees, and is engaged at all times by the part 3 of the gear F, and is moved by the latter when the part 2 of the gear F engages the rack G, which it does when the carriage O has nearly finished its inward run, the part 2 remaining in engagement with the said rack until the carriage has been run out to the point where the engagement first took place, thus moving the gear (Z and the arm d first in one and then in the other direction. The drawing-out rope or band E has one of its ends connected with the central part of the drawing-out scroll B, and extended about the sheave 8 is attached to the drum E. The check-rope E connected at one end with the tip 9 of the drawing-out scroll at its opposite side and wound thereon in such direction as to operate in opposition to the rope E is carried over the sheaves l0 and 12, and attached to the drum E. Heretofore the ends of these two ropes have been attached directly to the carriage, and whenever it became necessary, because of the work being done, to change the relative positions of the drawing-out scroll and carriage, each rope had to be adjusted independently, which was quite inconvenient and required that the mule be stopped. WVhen the toothed part 2 of the gear F engages the rack G near the completion of the inward movement of the carriage, the worm bflthrough the slide 0, link 0 and arm d, is moved outward or toward the spindles and rotates the drums E E to wind the drawing-out rope or bandE upon the drum E, and unwind the check-rope E from the drum E, thus setting the parts in proper position preparatory to running the carriage out.

As before stated, one object of the present invention is to retard the speed of the carriage at the commencement of its outward run. Having wound an extra amount of the drawing-out rope from the drum E on the drum E, and unwound a part of the check-rope, and changed the relative position of the drawingout scroll and carriage at the completion of the inward run of the carriage, the outward run of the latter will be started, and for the first part of its outward movement the rope E is acted upon not only by the drawing-out scroll, but also by the drum E, and as the latter acts to unwind the drawing-out rope as the drawing-out scroll winds it up it follows that the retardation of the carriage is equal to the amount of the unwinding of the rope E from the said drum E. The length of rope E wound upon the drum E at the completion of the inward run of the carriage depends upon the position of the pin 4'in the crank-arm d, connected with the gear (1". The farther the said pin is from the center of the hub 5 the greater the extent of reciprocation of the worm b, and the greater the amount of rope so wound up, and consequently the slower the movement of the carriage during the first part of its outward run. The drawing-out scroll, if used alone, would start the carriage outward at its fastest speed; but to obviate this and move the carriage slowly, to avoid shock as the latter starts from the rolls, the crankarmd, at the inward run of the carriage, is left in such position that it will commence to slide the worm b at its fastest speed as soon as the carriage starts it; but as the pin 4 of the said crank-arm approaches its dead-center the speed of the said worm is diminished and the speed of the carriage is increased to that due to the speed of the scroll, and the toothed part 2 leaves the rack G as the pin 4 of the said arm reaches its dead-center. The speed at which the rope E is unwound from the drum E through the worm is such that as the part 2 of the gear F leaves the rack G the carriage shall have been brought, by the gear F, worm b and intermediate parts, to substantially the speed of the rope derived from the drawing-out scroll. The girt is provided with a lug, h, to arrest the movement cf the crank-arm din one direction, and when the gear F is not engaged with the rack G. The shaft 1) may be rotated by hand to rotate the worm b and turn the drums E E to unwind one and wind up the other rope, that one of the ropes to be wound up depending upon the direction of rotation of the said shaft. The shaft 1) will be rotated by hand whenever it is desired to change the position of the drawing-out scroll with relation to the carriage to insure for the latter the proper speed during the latter part of its outward run.

I do notherein broadly claim the drum. for changing the position of the drawing-out scroll with relation to the carriage to regulate its speed during the latter part of its outward run, as such is claimed in a separate application, No. 123,450, filed March 7, 1884:.

The mode of operation of the mechanism herein described is peculiar, and it will be seen that the retardation of the carriage at the early part of its outward run is effected by supplying to the drawing-out scroll, from the carriage, a certain amount of rope which is stored thereon near the completion of the inward run of the carriage, the drum E being the device upon which the rope E is so stored up. The check-rope, the sole purpose of which is to prevent the carriage moving at a different speed from that due to the scroll, is, it will be noticed, correspondingly unwound from the drum E. V

The mode of operation hereinbefore described and just referred to is not herein claimed, as the same is made the subject-matter of claim in another application for United States Patent, Serial No. 171,960, filed July 18, 1885.

The rack G, the gear F, provided with two toothed parts, 2 and 3, and having its axis mounted on the carriage, the toothed gear 01 and its arm, the link 0 the slide 0, with which the said link is connected, the arm 0 of the said slide, and the sliding shaft 1), provided with a worm to engage a worm-gear, a, attached to the drum E, having its axis of motion on the carriage, constitute the means for actuating the said drum to store up the drawing-out rope during the inward run of the carriage, and paying out the same during the early part of the outward run of the carriage.

I claim 1. The head-stock, drawing-out scroll and its shaft, and ropes E E combined with the carriage, and with means, substantially as described, for connecting the said ropes therewith, the same automatically operating to store up the drawing-out rope during the inward run of the carriage and pay out the same during the early part of the outward run of the carriage, substantially as described.

2. The carriage, the drum, its support, the head-stock, the drawing-out scroll and its shaft, and the ropes E E combined with mechanism, substantially as described, to antomatically operate the said drum to wind up a part of the drawing-out rope during the inward run of the carriage and to pay the same out during the first part of the outward run of the carriage, whereby the speed of the carriage during the first part of its outward run is checked, substantially as described.

3. The carriage, the drum E, and its support, combined with the sliding worm and mechanism, substantially as described, to 0p erate it, as and for the purpose set forth.

4. The carriage, the drum, its support, the worm, the arm d, and the links to connect it with the worm, combined with mechanism, substantially as described, to operate the said arm, as and for the purposes set forth.

5. The carriage, the drum, its support, the

worm, the arm d, and the link, combined with the gear F, a rack to move the said gear, and the connecting device between the gear F and the arm d to move the latter, substantially as described.

6. The carriage, the drum and its support, and the head stock, and the drawing out scroll and its shaft, combined with the two ropes E E each of which at one end is connected with the said scroll, and at its other end with the said drum, substantially as described.

7. The check-rope and the drawing-out rope and the carriage, combined with the two drums E E, mounted loosely on an axis supported by the carriage and provided with c1utch-teeth, the said drums being adjustable, one with relation to the other, to enable slack in the said ropes to be taken up, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EBEN A. BALDWIN.

Witnesses:

G. W. GREGORY, B. J. NoYEs. 

